From 87dbc77459930f8f65a6d7d1e1db498da4aa74d6 Mon Sep 17 00:00:00 2001 From: Andrew Burgess Date: Sun, 7 Jun 2020 23:07:52 +0100 Subject: gdb/python: Add architecture method to gdb.PendingFrame It could be useful to determine the architecture of a frame being unwound during the frame unwind process, that is, before we have a gdb.Frame, but when we only have a gdb.PendingFrame. The PendingFrame already has a pointer to the gdbarch internally, this commit just exposes an 'architecture' method to Python, and has this return a gdb.Architecture object (list gdb.Frame.architecture does). gdb/ChangeLog: * NEWS: Mention new Python API method. * python/py-unwind.c (pending_framepy_architecture): New function. (pending_frame_object_methods): Add architecture method. gdb/testsuite/ChangeLog: * gdb.python/py-unwind.py (TestUnwinder::__call__): Add test for gdb.PendingFrame.architecture method. gdb/doc/ChangeLog: * python.texi (Unwinding Frames in Python): Document PendingFrame.architecture method. --- gdb/testsuite/gdb.python/py-unwind.py | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'gdb/testsuite/gdb.python/py-unwind.py') diff --git a/gdb/testsuite/gdb.python/py-unwind.py b/gdb/testsuite/gdb.python/py-unwind.py index 42dd6fe..d01da80 100644 --- a/gdb/testsuite/gdb.python/py-unwind.py +++ b/gdb/testsuite/gdb.python/py-unwind.py @@ -30,7 +30,6 @@ class FrameId(object): def pc(self): return self._pc - class TestUnwinder(Unwinder): AMD64_RBP = 6 AMD64_RSP = 7 @@ -69,6 +68,15 @@ class TestUnwinder(Unwinder): This unwinder recognizes the corrupt frames by checking that *RBP == RBP, and restores previous RBP from the word above it. """ + + # Check that we can access the architecture of the pending + # frame, and that this is the same architecture as for the + # currently selected inferior. + inf_arch = gdb.selected_inferior ().architecture () + frame_arch = pending_frame.architecture () + if (inf_arch != frame_arch): + raise gdb.GdbError ("architecture mismatch") + try: # NOTE: the registers in Unwinder API can be referenced # either by name or by number. The code below uses both -- cgit v1.1